The Breeders' Cup Mile is a 1-mile Grade 1Weight for Agestakes race for thoroughbredracehorses three years old and up run annually since 1984 at a different racetrack in the United States or Canada as part of the Breeders' Cup. Conditions races are horse races for the very best of horses and are split into: Pattern Races Group 1 - (Classics and other races of major international importance) Group 2 - (less important international races) Group 3 - (primarily domestic races) and Listed Races - have less prestige than the group races but are... Weight for Age is a term used in thoroughbred racing. ... Stakes race is a term applied to thoroughbred horse racing to describe races that derive their name from the stake, or entry fee, owners must pay. ... The Thoroughbred is a horse breed developed in 18th century England when English mares were bred with imported Arabian stallions to create a distance racer. ... Horse-racing is an equestrian sporting activity which has been practiced over the centuries; the chariot races of Roman times were an early example, as was the contest of the steeds of the god Odin and the giant Hrungnir in Norse mythology. ... The Breeders Cup World Thoroughbred Championships is an annual series of thoroughbred horse races sponsored by the National Thoroughbred Racing Association. ...